In Depth Survey Report of Scoular Elevator, Salina, Kansas

摘要

An in/depth industrial hygiene survey of exposures to phosphine (7803512) during the use of aluminum-phosphide (20859738) was conducted as part of a survey on exposure to grain fumigants. Area monitoring and breathing zone sampling for phosphine were conducted during the addition of aluminum-phosphide to grain during turning operations; source samples and peak personal exposures were also analyzed. Major sources of personal exposure included the escape of air from the bin headspace during filling with treated grain, filling and emptying of the phosphide pellet dispenser, and infiltration from the treated grain bin and from the pellet dispenser itself into adjacent air space. Relatively good dust control was indicated by the total dust samples collected during the survey. Measures recommended by the author are in the report.